Why Is Lipid Diffusion an Important Mechanism for Drug Absorption

question 14

Multiple Choice

Why is lipid diffusion an important mechanism for drug absorption?

• A)Many epithelial membranes must be crossed if a drug is to distribute in the body and reach its target organ.
• B)Epithelial cells do not have lipid membranes,so a drug must be water-soluble to diffuse across such a membrane.
• C)It is directly related to the proportion of a drug that reaches the systemic circulation.
• D)Lipid diffusion has no importance in drug absorption because the body has very few epithelial membranes drugs must cross.

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